Partially-guided Protocol for Maxillary Overdentures Retained by Ti-Zr One-piece Mini Implants (SMIS-Max)
Edentulous Jaw, Implant Complication
About this trial
This is an interventional treatment trial for Edentulous Jaw focused on measuring Dental implant, Overdenture, Edentulous patient, Clinical study, Effectiveness
Eligibility Criteria
Inclusion Criteria: ≥ 60 years of age healed dentulous maxillary arch (minimum of twelve weeks since the last extraction) wearing a complete maxillary denture evaluated as sufficient for surgical planning minimal ridge dimensions of 5.4 mm (width) by 12 mm (height) in the anterior and premolar maxillary area bone dimensions allowing the placement of one-piece implants with a 2.4 mm-diameter and minimum length of 10 mm. general health condition should be a physical status ASA1 or ASA2. Exclusion Criteria: inability to perform adequate oral hygiene incapability to provide written informed consent and compliance to the protocol any contraindication for oral surgery such as but not limited to, uncontrolled diabetes immunosuppression radiation or chemotherapy antiresorptive medication such as bisphosphonates presence of dental, periodontal or peri-implant disease in the opposing arch presence of a conventional complete denture in the opposing arch (mandible) presence of an insufficient partial removable denture or implant-overdenture in the opposing arch, which cannot be rendered sufficient by a reline heavy smoking habit with > 20 cig/d reported severe bruxism or clenching habits clinically present oro-facial pain depression with a Geriatric Depression Scale above 12 xerostomia with a stimulated salivary flow rate inferior to 0.7 ml/min ridge morphology type IV (Cawood and Howell, 1988) defects requiring bone augmentation procedures, or unhealthy soft tissues.
Sites / Locations
Arms of the Study
Arm 1
Experimental
One-piece titanium-zirconium mini implants
Six one-piece titanium-zirconium mini implants (Straumann® Mini Implant System, Institut Straumann AG, Switzerland) in the edentulous maxilla, using a partially-guided insertion protocol.